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The defense of invalidity is a counter-attack on the patent itself., i.e., the validity of the patent or of the allegedly infringed claims. Case law provides other defenses, such as the first-sale doctrine, the right to repair, and unenforceability because of inequitable conduct. In the case of a medical procedure patent issued after 1996, a U ...
(This would be a chart prepared by the defendant or party accused of infringing the patent.) An infringement chart that allegedly shows how the product or process accused of infringement contains each claim element, thereby satisfying the all elements test for infringement. (This would be a chart prepared by the plaintiff or patent owner.) [2]
In the United States, the cost of defending against a patent infringement suit, as of 2004, is typically $1 million or more before trial, and $4 million or more for a complete defense, even if successful. And, when non-litigation licensing and settlements are factored in, the actual costs of fighting patent lawsuits is much higher.
The issues of patent validity and patent infringement fall under exclusive jurisdiction of the Federal government. On the other hand, questions of patent ownership (like other questions of private property) are contested in state courts, although federal courts can make decisions about patent ownership by applying the relevant state law, when ...
Ireland appears to subscribe to a doctrine of equivalents. In Farbwerke Hoechst v Intercontinental Pharmaceuticals (Eire) Ltd (1968), a case involving a patent of a chemical process, the High Court found that the defendant had infringed the plaintiff's patent despite the fact that the defendant had substituted the starting material specified in the patent claim for another material.
Patent prosecution is distinct from patent litigation, which describes legal action relating to the infringement of patents. The rules and laws governing patent prosecution are often laid out in manuals released by the Patent Offices of various governments, such as the Manual of Patent Examining Procedure (MPEP) in the United States, or the ...
Prior user rights defense: If an individual/entity begins using an invention ('user') more than a year before a subsequent inventor files for a patent on the same invention, then the user will have the right to continue using the invention in the same way after the subsequent inventor is granted a patent, as long as the user did not derive the ...
Government patent use law is a statute codified at 28 USC § 1498(a) [1] that is a "form of government immunity from patent claims." [2] [1] Section 1498 gives the federal government of the United States the "right to use patented inventions without permission, while paying the patent holder 'reasonable and entire compensation' which is usually "set at ten percent of sales or less".